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What is more efficient? Using pow to square or just multiply it with itself?

...\ std::cout << elapsed << " "; \ \ return x; \ } TEST(1, b) TEST(2, b*b) TEST(3, b*b*b) TEST(4, b*b*b*b) TEST(5, b*b*b*b*b) template <int exponent> double testpow(double base, long loops) { double x = 0.0; boost::posix_time::ptime startTime = now(); for (long...
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How do I interpret precision and scale of a number in a database?

...efers to the maximum number of digits that are present in the number. ie 1234567.89 has a precision of 9 Numeric scale refers to the maximum number of decimal places ie 123456.789 has a scale of 3 Thus the maximum allowed value for decimal(5,2) is 999.99 ...
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How to check if smtp is working from commandline (Linux) [closed]

... 177 Syntax for establishing a raw network connection using telnet is this: telnet {domain_name} {...
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How to print a string in fixed width?

... 115 EDIT 2013-12-11 - This answer is very old. It is still valid and correct, but people looking a...
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is it possible to select EXISTS directly as a bit?

... you'll have to use a workaround. If you must return a conditional bit 0/1 another way is to: SELECT CAST( CASE WHEN EXISTS(SELECT * FROM theTable where theColumn like 'theValue%') THEN 1 ELSE 0 END AS BIT) Or without the cast: SELECT CASE WHEN EXISTS( SELECT 1 FROM theTa...
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Static function variables in Swift

... 158 I don't think Swift supports static variable without having it attached to a class/struct. Try...
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How to find list of possible words from a letter matrix [Boggle Solver]

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Getting image dimensions without reading the entire file

... 106 Your best bet as always is to find a well tested library. However, you said that is difficult,...
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Print all day-dates between two dates [duplicate]

...up with this: from datetime import date, timedelta sdate = date(2008, 8, 15) # start date edate = date(2008, 9, 15) # end date delta = edate - sdate # as timedelta for i in range(delta.days + 1): day = sdate + timedelta(days=i) print(day) The output: 2008-08-15 2008-08-16 .....
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Where is the WPF Numeric UpDown control?

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